11.Resveratrol are derived from natural plant ( polygonum cuspidatum);
Resveratrol content of detection is to 100% trans-resveratrol, the product isn't included maleinoid form resveratrol; Emodin are less than 3% in mass production of 50% Resveratrol, it's lower than Industry Standard via SGS and other international organizations tested; Our production and packing are completed in GMP workshop